A Model For Polarised Microwave Foreground Emission From Interstellar Dust

Abstract

The upcoming generation of cosmic microwave background (CMB) experiments face a major challenge in detecting the weak cosmic B-mode signature predicted as a product of primordial gravitational waves. To achieve the required sensitivity these experiments must have impressive control of systematic effects and detailed understanding of the foreground emission that will influence the signal. In this paper, we present templates of the intensity and polarisation of emission from one of the main Galactic foregrounds, interstellar dust. These are produced using a model which includes a 3D description of the Galactic magnetic field, examining both large and small scales. We also include in the model the details of the dust density, grain alignment and the intrinsic polarisation of the emission from an individual grain. We present here Stokes parameter template maps at 150GHz and provide an on-line repository (http://www.imperial.ac.uk/people/c.contaldi/fgpol) for these and additional maps at frequencies that will be targeted by upcoming experiments such as EBEX, Spider and SPTpol.

7 pages, 4 figures

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Cited by in corpus (19)

• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Final Maps and Results
• BICEP2 I: Detection Of B-mode Polarization at Degree Angular Scales
• The Quest for B Modes from Inflationary Gravitational Waves
• Toward an Understanding of Foreground Emission in the BICEP2 Region
• The pre-launch Planck Sky Model: a model of sky emission at submillimetre to centimetre wavelengths
• Planck intermediate results. XXX. The angular power spectrum of polarized dust emission at intermediate and high Galactic latitudes
• Neutral hydrogen structures trace dust polarization angle: Implications for cosmic microwave background foregrounds
• Degree-Scale CMB Polarization Measurements from Three Years of BICEP1 Data
• A 3-D model of polarised dust emission in the Milky Way
• Dust polarization and ISM turbulence
• Practical Modeling of Large-Scale Galactic Magnetic Fields: Status and Prospects
• Modelling and simulation of large-scale polarized dust emission over the southern Galactic cap using the GASS HI data
• $B$-mode forecast of CMB-Bh$\overline{a}$rat
• Planck intermediate results. XXXVIII. E- and B-modes of dust polarization from the magnetized filamentary structure of the interstellar medium
• Pre-flight integration and characterization of the SPIDER balloon-borne telescope
• Planck intermediate results. XLIV. The structure of the Galactic magnetic field from dust polarization maps of the southern Galactic cap
• On the statistics of the polarized submillimetre emission maps from thermal dust in the turbulent, magnetized, diffuse ISM
• A new model of the microwave polarized sky for CMB experiments
• Cosmic Bandits: Exploration versus Exploitation in CMB B-Mode Experiments